EP1632937A3 - Data recording and readingout system - Google Patents
Data recording and readingout system Download PDFInfo
- Publication number
- EP1632937A3 EP1632937A3 EP05019117A EP05019117A EP1632937A3 EP 1632937 A3 EP1632937 A3 EP 1632937A3 EP 05019117 A EP05019117 A EP 05019117A EP 05019117 A EP05019117 A EP 05019117A EP 1632937 A3 EP1632937 A3 EP 1632937A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- recording medium
- recorded
- optical recording
- readout
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
- G11B7/24085—Pits
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/122—Flying-type heads, e.g. analogous to Winchester type in magnetic recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1387—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector using the near-field effect
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1372—Lenses
- G11B2007/13727—Compound lenses, i.e. two or more lenses co-operating to perform a function, e.g. compound objective lens including a solid immersion lens, positive and negative lenses either bonded together or with adjustable spacing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/24304—Metals or metalloids group 2 or 12 elements (e.g. Be, Ca, Mg, Zn, Cd)
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24318—Non-metallic elements
- G11B2007/2432—Oxygen
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24065—Layers assisting in recording or reproduction below the optical diffraction limit, e.g. non-linear optical layers or structures
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Optical Head (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004256764A JP2006073120A (en) | 2004-09-03 | 2004-09-03 | Data recording and reproducing system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1632937A2 EP1632937A2 (en) | 2006-03-08 |
EP1632937A3 true EP1632937A3 (en) | 2008-01-23 |
Family
ID=35507062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05019117A Withdrawn EP1632937A3 (en) | 2004-09-03 | 2005-09-02 | Data recording and readingout system |
Country Status (3)
Country | Link |
---|---|
US (1) | US7554894B2 (en) |
EP (1) | EP1632937A3 (en) |
JP (1) | JP2006073120A (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005025841A (en) * | 2003-07-01 | 2005-01-27 | Tdk Corp | Optical recording disk |
JP2005022196A (en) * | 2003-07-01 | 2005-01-27 | Tdk Corp | Optical recording disc |
JP2005025842A (en) * | 2003-07-01 | 2005-01-27 | Tdk Corp | Optical recording disk |
JP2005044438A (en) * | 2003-07-22 | 2005-02-17 | Tdk Corp | Optical recording disk |
JP2005129181A (en) * | 2003-10-27 | 2005-05-19 | National Institute Of Advanced Industrial & Technology | Optical recording disk |
RU2435234C2 (en) * | 2006-05-15 | 2011-11-27 | Конинклейке Филипс Электроникс Н.В. | Optical disc reading device and operation method thereof |
JP2008016696A (en) * | 2006-07-07 | 2008-01-24 | Tdk Corp | Method of inspecting dustproof performance of photo detector and method of manufacturing photo detector using the same |
JP4345859B2 (en) * | 2007-09-12 | 2009-10-14 | ソニー株式会社 | Optical pickup device, optical recording / reproducing device, and gap control method |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6181478B1 (en) * | 1999-07-16 | 2001-01-30 | Michael Mandella | Ellipsoidal solid immersion lens |
JP2004220687A (en) * | 2003-01-14 | 2004-08-05 | Samsung Japan Corp | Recording medium of superresolution near field structure, recording method and reproducing method thereof, recording apparatus and reproducing apparatus of the same |
US20050105418A1 (en) * | 2003-10-31 | 2005-05-19 | National Institute Of Advanced Industrial Science And Technology | Method for determining a reproducing power of a laser beam and an apparatus for recording and reproducing data |
EP1555666A1 (en) * | 2002-06-24 | 2005-07-20 | TDK Corporation | Optical recording/reproducing method and optical recording medium |
US20050169157A1 (en) * | 2003-10-28 | 2005-08-04 | Tdk Corporation | Optical recording disk |
US20050219994A1 (en) * | 2004-03-29 | 2005-10-06 | Tdk Corporation | Optical recording medium |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3241560B2 (en) | 1995-02-24 | 2001-12-25 | ソニー株式会社 | Optical recording medium and method for manufacturing the same |
US6577584B1 (en) * | 2000-04-27 | 2003-06-10 | Arizona Board Of Regents On Behalf Of The University Of Arizona | Method and apparatus for detecting light from a multilayered object |
US7330404B2 (en) * | 2003-10-10 | 2008-02-12 | Seagate Technology Llc | Near-field optical transducers for thermal assisted magnetic and optical data storage |
-
2004
- 2004-09-03 JP JP2004256764A patent/JP2006073120A/en not_active Withdrawn
-
2005
- 2005-09-02 US US11/217,294 patent/US7554894B2/en not_active Expired - Fee Related
- 2005-09-02 EP EP05019117A patent/EP1632937A3/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6181478B1 (en) * | 1999-07-16 | 2001-01-30 | Michael Mandella | Ellipsoidal solid immersion lens |
EP1555666A1 (en) * | 2002-06-24 | 2005-07-20 | TDK Corporation | Optical recording/reproducing method and optical recording medium |
JP2004220687A (en) * | 2003-01-14 | 2004-08-05 | Samsung Japan Corp | Recording medium of superresolution near field structure, recording method and reproducing method thereof, recording apparatus and reproducing apparatus of the same |
US20050169157A1 (en) * | 2003-10-28 | 2005-08-04 | Tdk Corporation | Optical recording disk |
US20050105418A1 (en) * | 2003-10-31 | 2005-05-19 | National Institute Of Advanced Industrial Science And Technology | Method for determining a reproducing power of a laser beam and an apparatus for recording and reproducing data |
US20050219994A1 (en) * | 2004-03-29 | 2005-10-06 | Tdk Corporation | Optical recording medium |
Non-Patent Citations (2)
Title |
---|
KIKUKAWA T ET AL: "Rigid bubble pit formation and huge signal enhancement in super-resolution near-field structure disk with platinum-oxide layer", APPLIED PHYSICS LETTERS, AIP, AMERICAN INSTITUTE OF PHYSICS, MELVILLE, NY, US, vol. 81, no. 25, 16 December 2002 (2002-12-16), pages 4697 - 4699, XP012032788, ISSN: 0003-6951 * |
KIM JOOHO ET AL: "Super-resolution by elliptical bubble formation with PtOx and AgInSbTe layers", APPLIED PHYSICS LETTERS, AIP, AMERICAN INSTITUTE OF PHYSICS, MELVILLE, NY, US, vol. 83, no. 9, 1 September 2003 (2003-09-01), pages 1701 - 1703, XP012035922, ISSN: 0003-6951 * |
Also Published As
Publication number | Publication date |
---|---|
US7554894B2 (en) | 2009-06-30 |
JP2006073120A (en) | 2006-03-16 |
US20060062110A1 (en) | 2006-03-23 |
EP1632937A2 (en) | 2006-03-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1632937A3 (en) | Data recording and readingout system | |
EP1542219A3 (en) | Hologram recording medium and recording and reproducing system | |
EP1475794A3 (en) | Optical information recording medium | |
ATE496371T1 (en) | MULTI-LAYER INFORMATION RECORDING MEDIUM AND INFORMATION RECORDING AND PLAYBACKING DEVICE | |
TW200603152A (en) | Optical data storage system for recording and/or reading and optical data storage medium for use in such system | |
TW200735086A (en) | Complex optical storage medium, optical pickup, and optical recording/reproducing device | |
EP1484757A3 (en) | Optical information recording medium, recording and readout methods using the same, optical information recording device, and optical information readout device | |
EP1624454A3 (en) | Optical information recording medium with thermosensitive mask layer, reproduction method and optical information processing device using the same | |
CA2435652A1 (en) | Optical information medium and a method of manufacturing the medium | |
EP1684282A3 (en) | Optical recording medium | |
EP1205916A3 (en) | Optical Disk | |
EP1213714A3 (en) | Optical information recording medium with multiple recording layers | |
JP2003242644A5 (en) | ||
JP2003257025A5 (en) | ||
EP1640982A3 (en) | Optical disc and optical disc device | |
ATE350749T1 (en) | TWO-LAYER OPTICAL MEDIA AND USE THEREOF | |
TW200606899A (en) | Optical data storage system and method of optical recording and/or reading | |
JP2003242643A5 (en) | ||
US20020122374A1 (en) | Optical recording medium, optical information processing apparatus and optical recording and reproducing method | |
EP2390877A1 (en) | Device for recording and reading data on a multi-layer optical disc | |
DE60328992D1 (en) | OPTICAL RECORDING AND READING SYSTEM AND USE OF OPTICAL DATA STORAGE MEDIUM IN SUCH A SYSTEM | |
EP1215665A3 (en) | Optical disc having pits of desired wall angle | |
JP2005322276A (en) | Optical recording medium | |
EP1835493A3 (en) | Optical disk and optical disk apparatus | |
JP2006048832A5 (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK YU |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK YU |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: G11B 7/24 20060101ALI20071217BHEP Ipc: G11B 7/00 20060101AFI20060111BHEP |
|
AKX | Designation fees paid | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20080724 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |